If you have a video cable connected, in addition to the HDMI cable, then the TV may be set to the wrong video input.

Set the speaker output to AV AMP when using a BRAVIA television.

If using a HDMI-to-DVI adapter or cable, connect a different cable to support the audio signal.

IMPORTANT:Since DVI inputs only support video signals, another cable type must be used to get the audio to the TV. Depending on the audio input available on the TV, use either a digital (optical or coaxial) or red & white analog cable.

Turn the Blu-ray Disc player off and on again.

NOTE: This normally resolves playback issues with MPEG2 PS files.

If the issue is unresolved, try replacing the HDMI cable.

If using an amplifier with HDMI cable to connect the Blu-ray Disc player to the TV, set Audio (HDMI) or Digital Audio Output on the Blu-ray Disc player to PCM to see if the amplifier produces any sound.